Features: ` 800 V avalanche rugged power section` PWM operation with frequency jittering for low EMI` Operating frequency: 60 kHz for L type 115 kHz for H type` Standby power < 50 mW at 265 Vac` Limiting current with adjustable set point` Adjustable and accurate over voltage protection` On-boar...
VIPER17: Features: ` 800 V avalanche rugged power section` PWM operation with frequency jittering for low EMI` Operating frequency: 60 kHz for L type 115 kHz for H type` Standby power < 50 mW at 265 Vac` ...
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Symbo | Pin (DIP7) |
Parameter | Value | Unit |
VDRAIN | 7, 8 | Drain-to-source (ground) voltage | 800 | V |
EAV | 7, 8 | Repetitive avalanche energy (limited by TJ = 150 ) | 2 | mJ |
IAR | 7, 8 | Repetitive avalanche current (limited by TJ = 150 ) | 1 | A |
IDRAIN | 7, 8 | Pulse drain current | 2.5 | A |
VCONT | 3 | Control input pin voltage (with ICONT = 1 mA) | Self limited | V |
VFB | 4 | Feed-back voltage | -0.3 to 5.5 | V |
VBR | 5 | Brown-out input pin voltage | 2 | V |
VDD | 2 | Supply voltage (IDD = 25 mA) | Self limited | V |
IDD | 2 | Input current | 25 | mA |
PTOT | Power dissipation at TA < 50 | 1 | W | |
TJ | Operating junction temperature range | -40 to 150 | ||
TSTG | Storage temperature | -55 to 150 |
The VIPER17 is an off-line converter with an 800 V rugged power section, a PWM control, two levels of over current protection, over voltage and overload protections, hysteretic thermal protection, soft-start and safe auto-restart after any fault condition removal. Burst mode operation and VIPER17 very low consumption helps to meet the standby energy saving regulations.
Advance frequency jittering reduces EMI filter cost. Brown-out function of VIPER17 protects the switch mode power supply when the rectified input voltage level is below the normal minimum level specified for the system. The high voltage start-up circuit of VIPER17 is embedded in the device.